低速冲击时冲击角度和摩擦对玻纤增强铝板性能的影响  

Influence of impact angle and friction on the performance of glass fiber reinforced aluminum laminates(GLARE) under low-velocity impact

作　　者：万云 童谷生[1] 陈莘莘 魏星 黄永虎 WAN Yun;TONG Gusheng;CHEN Shenshen;WEI Xing;HUANG Yonghu(School of Civil Engineer and Architecture,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]华东交通大学土木与建筑学院,江西南昌330013

出　　处：《哈尔滨工程大学学报》2018年第5期897-901,共5页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(11462005);江西省重点研发计划项目(20071BBE50024);江西省教育厅基金青年项目(GJJ170395)

摘　　要：为了研究在不同冲击角度和接触摩擦力受低速冲击载荷下玻璃纤维铝合金层合板破坏情况,本文结合VUMAT用户自定义子程序、Johnson-Cook损伤模型和基于表面接触行为的内聚力行为方法,建立了玻璃纤维增强铝合金层板(GLARE)低速冲击有限元模型。通过实验对比材料受低速冲击响应和材料损伤状况。结果表明:冲击角较小时材料损伤较小;减小摩擦系数能够减小材料冲击损伤,且减小幅度随着冲击角减小而增大;冲击角度和摩擦对材料冲击性能影响规律可以为类似结构设计提供参考。In order to investigate the failure of glass-fiber reinforced aluminum（ GLARE） laminates under low-velocity impact loading with different impact angle and friction. A numerical methodology including user material subroutine vectorized user material routine（ VUMAT）,Johnson-Cook flow stress model and surface-based cohesive behavior was built. The comparison of impact response and material failure between the experimental and simulative results was presented. The results indicated that smaller impact angle the damage of the laminate reduced with the decrease the impact angle. To reduce the friction coefficient can suppress the damage of the laminate,and decreased extent increase with increasing of friction coefficient. The influence rule of impact angle and friction provide references for design of similar structures.

关 键 词：低速冲击 玻纤金属板 数值分析 冲击响应 冲击角度 能量吸收 摩擦 

分 类 号：TB331[一般工业技术—材料科学与工程]